Patents by Inventor Kohei HATANO
Kohei HATANO has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11921162Abstract: According to one embodiment, the information processing device includes: a first state estimator configured to estimate a state of a target rechargeable battery based on: first data including a charge amount and voltage value of a rechargeable battery; information including a state of the rechargeable battery; and second data including a charge amount and voltage value of the rechargeable battery.Type: GrantFiled: September 8, 2021Date of Patent: March 5, 2024Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Hisaaki Hatano, Takahiro Yamamoto, Kohei Maruchi, Kenichi Fujiwara, Masatake Sakuma
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Publication number: 20230358339Abstract: A pipe supporting structure includes: a plate-like member being into contact with an outside surface of a pipe; a tube-like member having a tubular shape and configured to support the plate-like member; and a base configured to support the tube-like member, wherein the plate-like member includes a supported portion supported by the tube-like member and an inner side portion surrounded by the supported portion, and the inner side portion has a smaller heat capacity per unit volume than the supported portion.Type: ApplicationFiled: July 14, 2023Publication date: November 9, 2023Inventors: Ryutaro FUJISAWA, Hikaru KUROSAKI, Kohei HATANO, Toyosei AOTA, Yoshimasa TSUMURA
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Patent number: 10731499Abstract: A seal device for a turbine is disposed around a rotor so as to separate a high-pressure space and a low-pressure space and includes: a plurality of thin plates arranged along an outer peripheral surface of the rotor. Each of the thin plates has a thin-plate tip surface facing the outer peripheral surface of the rotor; a first side plate disposed so as to face the high-pressure space and covering outer peripheral regions of first side surfaces; and a second side plate disposed so as to face the low-pressure space and covering outer peripheral regions of second side surfaces. The first side surface of each of the thin plates is covered with the first side plate in a region extending further to an inner side, in a radial direction of the rotor, than a region of the second side surface covered with the second side plate.Type: GrantFiled: December 22, 2015Date of Patent: August 4, 2020Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.Inventors: Azumi Yoshida, Hidekazu Uehara, Hiroharu Oyama, Kohei Ozaki, Katsuhisa Hamada, Hideaki Sugishita, Toyoharu Nishikawa, Yoshihiro Kuwamura, Kohei Hatano, Keisuke Matsuyama
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Patent number: 10662796Abstract: A seal device for a turbine includes: a plurality of thin plates arranged along an outer peripheral surface of the rotor, each of the thin plates including a root portion disposed on an outer side in a radial direction of the rotor and supported on a stationary part of the turbine and a tip portion disposed on an inner side in the radial direction of the rotor and having a tip surface facing the outer peripheral surface of the rotor. Each of the thin plates is configured such that a width direction of the thin plate is parallel to an axial direction of the rotor at a side of the root portion, and the tip portion of each of the thin plates is configured such that an end on a side of the high-pressure space is positioned downstream of another end on a side of the low-pressure side.Type: GrantFiled: February 9, 2016Date of Patent: May 26, 2020Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.Inventors: Azumi Yoshida, Hidekazu Uehara, Hiroharu Oyama, Kohei Ozaki, Katsuhisa Hamada, Hideaki Sugishita, Toyoharu Nishikawa, Yoshihiro Kuwamura, Kohei Hatano, Keisuke Matsuyama
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Patent number: 10400633Abstract: A pressure vessel for a turbine is disclosed. A cylindrical shape of the pressure vessel is divided into two parts in a radial direction of the pressure vessel and the pressure vessel is connected in the cylindrical shape via flanges protruding outward in the radial direction of the pressure vessel at both divided ends of the pressure vessel. Increased thickness portions are defined in a portion excluding the divided ends and circular arc center portions farthest from the divided ends. The portion is between the divided ends and the circular arc center portions and the increased thickness portions increase radial thickness of the portion.Type: GrantFiled: August 26, 2015Date of Patent: September 3, 2019Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventor: Kohei Hatano
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Patent number: 10370734Abstract: A heating step, in which a stainless member is heated to a temperature within or above a heating phase-transformation temperature range (Ar) in which the stainless member is phase-transformed, is executed. A cooling step in which the stainless member heated in the heating step is cooled to a temperature below a cooling phase-transformation temperature range (Mr) in which the stainless member is phase-transformed, is executed. In the cooling step, cooling of the stainless member is suppressed in a control temperature range including the cooling phase-transformation temperature range (Mr).Type: GrantFiled: September 29, 2014Date of Patent: August 6, 2019Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.Inventors: Kohei Hatano, Hiroharu Oyama, Yasuo Matsunami, Naoyuki Umezu, Shuhei Kuroki, Hidetaka Haraguchi, Takumi Matsumura, Motonari Machida
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Patent number: 10343356Abstract: To reduce a time required for repairing a honeycomb core sandwich panel. A repair method according to the present invention is a repair method, in which a repair patch 20 is disposed on a repair target portion that exists on the side of a repair surface 1A of a honeycomb core sandwich panel 1, the honeycomb core sandwich panel 1 being formed by sandwiching a honeycomb structured core 10 with a plurality of cells between skins 11 and 12, the method including: a heating step of heating the repair patch 20; and a cooling step of cooling the honeycomb core sandwich panel 1 from the side of a second surface 1B opposing the repair surface 1A of the honeycomb core sandwich panel 1.Type: GrantFiled: March 20, 2014Date of Patent: July 9, 2019Assignee: MITSUBISHI AIRCRAFT CORPORATIONInventors: Kohei Hatano, Masayoshi Suhara, Toshikazu Shigetomi, Shuhei Muto
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Patent number: 10107113Abstract: A steam turbine vane manufacturing method including: a groove processing step for forming a protective part joint surface on a steam turbine vane material that has been subjected to rough processing; a build-up welding step for forming, by build-up welding, a protective part build-up bead on the protective part joint surface; and a processing step for performing processing, by cutting the first steam turbine vane material that has been subjected to rough processing and the protective part build-up bead, to finish the first steam turbine vane material has been subjected to rough processing so that the first steam turbine vane material becomes a second steam turbine vane material that has been subjected to finishing processing. The first steam turbine vane material that has been subjected to rough processing is larger than the second steam turbine vane material that has been subjected to finishing processing.Type: GrantFiled: January 24, 2014Date of Patent: October 23, 2018Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.Inventors: Hidetaka Haraguchi, Hiroharu Oyama, Takahiro Ota, Motonari Machida, Kohei Hatano, Takumi Matsumura
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Patent number: 10105752Abstract: A method of manufacturing a turbine blade, the method comprising forming a forging by forging stainless steel; heat treating the forging; and cooling the forging after the heat treatment; wherein in the heat treatment and the cooling, a plurality of the forgings are arranged in alignment, and adjacent forgings of the plurality of forgings are disposed so that at least respective portions of portions of the adjacent forgings corresponding to a region from a portion corresponding to a platform of a turbine blade to a center in a longitudinal direction of the turbine blade face each other and warm each other via radiant heat.Type: GrantFiled: January 27, 2015Date of Patent: October 23, 2018Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.Inventors: Kohei Hatano, Hiroharu Oyama, Yasuo Matsunami, Naoyuki Umezu, Shuhei Kuroki, Hidetaka Haraguchi, Takumi Matsumura
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Patent number: 9919392Abstract: A method for manufacturing a turbine rotor blade wherein warping, bending and twisting of the entire rotor blade, which is provided with an excess thickness portion after a forging step, can be suppressed. In the forging step in a process for manufacturing a rotor blade (23), the forging is hot-forged such that the distance (the excess thickness amount) from the blade surface of the blade section (23) to the surface of the excess thickness section is substantially uniform along the entire periphery of a cross section of the blade section (23) and the excess thickness section (31) perpendicular to the blade length direction, and such that the amount of the excess thickness in the blade length direction, which is the thickness of the excess thickness section (31), gradually increases toward the blade tip from a prescribed position.Type: GrantFiled: December 18, 2013Date of Patent: March 20, 2018Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.Inventors: Kohei Hatano, Hiroharu Oyama, Motonari Machida, Hidetaka Haraguchi, Ken Ishii, Keisuke Kamitani, Takumi Matsumura, Takahiro Ota
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Publication number: 20180045065Abstract: A seal device for a turbine includes: a plurality of thin plates arranged along an outer peripheral surface of the rotor, each of the thin plates including a root portion disposed on an outer side in a radial direction of the rotor and supported on a stationary part of the turbine and a tip portion disposed on an inner side in the radial direction of the rotor and having a tip surface facing the outer peripheral surface of the rotor. Each of the thin plates is configured such that a width direction of the thin plate is parallel to an axial direction of the rotor at a side of the root portion, and the tip portion of each of the thin plates is configured such that an end on a side of the high-pressure space is positioned downstream of another end on a side of the low-pressure side.Type: ApplicationFiled: February 9, 2016Publication date: February 15, 2018Inventors: Azumi YOSHIDA, Hidekazu UEHARA, Hiroharu OYAMA, Kohei OZAKI, Katsuhisa HAMADA, Hideaki SUGISHITA, Toyoharu NISHIKAWA, Yoshihiro KUWAMURA, Kohei HATANO, Keisuke MATSUYAMA
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Publication number: 20180030845Abstract: A seal device for a turbine is disposed around a rotor so as to separate a high-pressure space and a low-pressure space and includes: a plurality of thin plates arranged along an outer peripheral surface of the rotor. Each of the thin plates has a thin-plate tip surface facing the outer peripheral surface of the rotor; a first side plate disposed so as to face the high-pressure space and covering outer peripheral regions of first side surfaces; and a second side plate disposed so as to face the low-pressure space and covering outer peripheral regions of second side surfaces. The first side surface of each of the thin plates is covered with the first side plate in a region extending further to an inner side, in a radial direction of the rotor, than a region of the second side surface covered with the second side plate.Type: ApplicationFiled: December 22, 2015Publication date: February 1, 2018Inventors: Azumi YOSHIDA, Hidekazu UEHARA, Hiroharu OYAMA, Kohei OZAKI, Katsuhisa HAMADA, Hideaki SUGISHITA, Toyoharu NISHIKAWA, Yoshihiro KUWAMURA, Kohei HATANO, Keisuke MATSUYAMA
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Publication number: 20170342861Abstract: It is aimed to improve circularity. In a casing, in which a cylindrical shape thereof is divided into two parts in a radial direction thereof and the casing is connected in the cylindrical shape via flanges thereof protruding outward in the radial direction at both divided ends thereof; increased thickness portions that increase radial direction thickness thereof are formed in a portion excluding the divided ends and circular arc center portions farthest from the divided ends, the portion being between the divided ends and the circular arc center portions.Type: ApplicationFiled: August 26, 2015Publication date: November 30, 2017Inventor: Kohei HATANO
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Publication number: 20160339507Abstract: A method of manufacturing a turbine blade, the method comprising the steps of forming a forging by forging stainless steel; heat treating the forging; and cooling the forging after the heat treatment; wherein in the heat treatment and the cooling, a plurality of the forgings are arranged in alignment, and adjacent forgings of the plurality of forgings are disposed so that at least respective portions of portions of the adjacent forgings corresponding to a region from a portion corresponding to a platform of a turbine blade to a center in a longitudinal direction of the turbine blade face each other and warm each other via radiant heat.Type: ApplicationFiled: January 27, 2015Publication date: November 24, 2016Inventors: Kohei HATANO, Hiroharu OYAMA, Yasuo MATSUNAMI, Naoyuki UMEZU, Shuhei KUROKI, Hidetaka HARAGUCHI, Takumi MATSUMURA
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Publication number: 20160237517Abstract: A heating step, in which a stainless member is heated to a temperature within or above a heating phase-transformation temperature range (Ar) in which the stainless member is phase-transformed, is executed. A cooling step in which the stainless member heated in the heating step is cooled to a temperature below a cooling phase-transformation temperature range (Mr) in which the stainless member is phase-transformed, is executed. In the cooling step, cooling of the stainless member is suppressed in a control temperature range including the cooling phase-transformation temperature range (Mr).Type: ApplicationFiled: September 29, 2014Publication date: August 18, 2016Inventors: Kohei HATANO, Hiroharu OYAMA, Yasuo MATSUNAMI, Naoyuki UMEZU, Shuhei KUROKI, Hidetaka HARAGUCHI, Takumi MATSUMURA, Motonari MACHIDA
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Publication number: 20160184940Abstract: The present invention addresses the problem of providing a method for manufacturing a turbine rotor blade wherein warping, bending and twisting of the entire rotor blade, which is provided with an excess thickness portion after a forging step, can be suppressed. In the forging step in a process for manufacturing a rotor blade (23), the forging is hot-forged such that the distance (the excess thickness amount) from the blade surface of the blade section (23) to the surface of the excess thickness section is substantially uniform along the entire periphery of a cross section of the blade section (23) and the excess thickness section (31) perpendicular to the blade length direction, and such that the amount of the excess thickness in the blade length direction, which is the thickness of the excess thickness section (31), gradually increases toward the blade tip from a prescribed position.Type: ApplicationFiled: December 18, 2013Publication date: June 30, 2016Inventors: Kohei HATANO, Hiroharu OYAMA, Motonari MACHIDA, Hidetaka HARAGUCHI, Ken ISHII, Keisuke KAMITANI, Takumi MATSUMURA, Takahiro OTA
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Publication number: 20150377043Abstract: A steam turbine vane manufacturing method including: a groove processing step for forming a protective part connecting surface (14) on a steam turbine vane material (11) that was subjected to rough processing; a build-up welding step for forming, by build-up welding, a protective part build-up bead (15) on the protective part connecting surface (14); and a processing step for performing processing, by cutting the steam turbine vane material (11) that was subjected to rough processing and the protective part build-up bead (15), to finish the steam turbine vane material (11) that was subjected to rough processing so that the same becomes a steam turbine vane material (16) that was subjected to finishing processing. In this case, the steam turbine vane material (11) that was subjected to rough processing is larger than the steam turbine vane material (16) that was subjected to finishing processing.Type: ApplicationFiled: January 24, 2014Publication date: December 31, 2015Applicant: MISUBISHI HITACHI POWER SYSTEMS, LTD.Inventors: Hidetaka HARAGUCHI, Hiroharu OYAMA, Takahiro OTA, Motonari MACHIDA, Kohei HATANO, Takumi MATSUMURA
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Publication number: 20140290831Abstract: To reduce a time required for repairing a honeycomb core sandwich panel. A repair method according to the present invention is a repair method, in which a repair patch 20 is disposed on a repair target portion that exists on the side of a repair surface 1A of a honeycomb core sandwich panel 1, the honeycomb core sandwich panel 1 being formed by sandwiching a honeycomb structured core 10 with a plurality of cells between skins 11 and 12, the method including: a heating step of heating the repair patch 20; and a cooling step of cooling the honeycomb core sandwich panel 1 from the side of a second surface 1B opposing the repair surface 1A of the honeycomb core sandwich panel 1.Type: ApplicationFiled: March 20, 2014Publication date: October 2, 2014Applicant: MITSUBISHI AIRCRAFT CORPORATIONInventors: Kohei HATANO, Masayoshi SUHARA, Toshikazu SHIGETOMI, Shuhei MUTO